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You searched for: subject:"scalar quantization"
[texts]Compress Compound Images in H.264/MPGE-4 AVC by Using Compound Image Coding - Girish Kumar Patra ,N Venkateswarlu , B Malleshwari , B Murali Krishna
Compound images are a combination of text, graphics and natural image. They present strong anisotropic features, especially on the text and graphics parts. These anisotropic features often render conventional compression inefficient. Thus, this paper proposes a novel coding scheme from the H.264 intraframe coding. In the scheme, two new intramodes are developed to better exploit spatial correlation in compound images...
Keywords: Base colors and the index map; compound image compression; dynamic programming; residual scalar quantization
Downloads: 7
[movies]6.450 Principles of Digital Communications I, Fall 2006 - MIT OpenCourseWare
The course serves as an introduction to the theory and practice behind many of today's communications systems. 6.450 forms the first of a two-course sequence on digital communication. The second class, 6.451, is offered in the spring. Topics covered include: digital communications at the block diagram level, data compression, Lempel-Ziv algorithm, scalar and vector quantization, sampling and aliasing, the Nyquist criterion, PAM and QAM modulation, signal constellations, finite-energy waveform sp...
Keywords: digital communication, data compression, Lempel-Ziv algorithm, scalar quantization, vector quantization, sampling, aliasing, Nyquist criterion, PAM modulation, QAM modulation, signal constellations, finite-energy waveform spaces, detection, communication system design
Downloads: 34,623
[movies]MIT 6.450 Principles of Digital Communications I (revised), Fall 2006 - MIT OpenCourseWare
*This version has overhead slides that have had been adjusted for better readability. The course serves as an introduction to the theory and practice behind many of today's communications systems. 6.450 forms the first of a two-course sequence on digital communication. The second class, 6.451, is offered in the spring. Topics covered include: digital communications at the block diagram level, data compression, Lempel-Ziv algorithm, scalar and vector quantization, sampling and aliasing, the Nyqui...
Keywords: digital communication; data compression; Lempel-Ziv algorithm; scalar quantization; vector quantization; sampling; aliasing; Nyquist criterion; PAM modulation; QAM modulation; signal constellations; finite-energy waveform spaces; detection; communication system design
Downloads: 43,436
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